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Good <br /> (gra'sses) (forbs or shrubs) <br /> Poa pratensis Cercocarpus mentanus <br /> Agrophron elongatum Prunus virginiana <br /> Agropyron intermedium Rosa sp <br /> Alopercurus arundenaceous Achillea lanulosa <br /> Festoca thurberii Wyethia arizonica <br /> The revegetation testing stage is considered to be com- <br /> pleted and reclamation procedures developed during the past five <br /> years are planned for large scale application on inactive and <br /> active disturbance sites. Some sites have already received <br /> reclamation procedures as planned to determine economics of <br /> application on a large scale. <br /> In addition to reclamation progress achieved by develop- <br /> ment of applied techniques, natural invasion of certain disturbed <br /> sites by adventitious indigenes has become evident and in some <br /> cases highly successful . The local conditions of climate, topo- <br /> graphy, and soils intrinsic to the area result in depauperate <br /> floristic communities with low diversity index. As a consequence, <br /> the number of dissemules available for immigration and establish- <br /> ment of disturbed areas is low, ultimately resulting in normally <br /> slow succession rates. However, relatively rapid natural inva- <br /> sion has been promoted on certain disturbed sites which offer <br /> appropriate potential due to moderating influences of reclamation <br /> practices or inherent factors. Natural invasion is considered <br /> to be the optimum method for achieving reclamation goals on <br /> affected acreage. Natural invasion processes occurring on <br /> Page 17 <br />